Freon-12, CF₂Cl₂, Which Has Been Widely Used in Air Conditioning

question 6

Multiple Choice

Freon-12, CF₂Cl₂, which has been widely used in air conditioning systems, is considered a threat to the ozone layer in the stratosphere. Calculate the root-mean-square velocity of Freon-12 molecules in the lower stratosphere where the temperature is -65°C.

• A) 20 m/s
• B) 120 m/s
• C) 207 m/s
• D) 260 m/s
• E) 4.4 × 10⁴ m/s

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Definitions:

Relationship

A connection, association, or involvement between people, which can be emotional, social, or professional.

Dismissive Avoidant

An avoidant attachment style characterized by a negative view of others but a positive view of the self, high anxiety and avoidance, and distant relationships.

Fearfully Avoidant

Describes an attachment style where individuals are both scared of being too close to or too distant from others, often resulting in ambivalent feelings in relationships.

Anxious-Ambivalent

A type of attachment characterized by high levels of anxiety and ambivalence towards attachment figures, leading to intense but insecure emotional bonds.